A constitutive model of the dynamic shear modulus dependence on temperature, prestrain, dynamic strain amplitude and magnetic field for magneto-sensitive elastomer

QC 20210607
A constitutive model for the temperature, prestrain, dynamic strain amplitude and the magnetic field dependence of the dynamic shear modulus for a magneto-sensitive (MS) elastomer is developed. It is an augmentation of a model consisting of an elastic, fractional order derivative viscoelastic and a nonlinear amplitude-dependent smooth Coulomb friction model. The magnetic field dependence is reflected by a parabolic function with an upper limit. A Yeoh formulation of the strain energy function is applied to represent the prestrain dependence. To cover the temperature dependence, a Williams-Landel-Ferry function and an Arrhenius function are used. After parameter identification, a good agreement between the simulation and measurement results is shown, which demonstrates the ability of the model to cover the prestrain and temperature dependency of MS elastomer. Therefore, the expansion of the model to cover the prestrain and temperature enables the prediction of the mechanical performance of MS elastomer under various conditions and improves the possibilities for MS dampers and mounts to meet design criteria.

Wang, BochaoKTH,Marcus Wallenberg Laboratoriet MWL,Univ Sci & Technol China, Dept Modern Mech, CAS Key Lab Mech Behav & Design Mat, CAS Ctr Excellence Complex Syst Mech, Hefei 230027, Anhui, Peoples R China.(Swepub:kth)u1ggly7v (författare)
Kari, LeifKTH,Marcus Wallenberg Laboratoriet MWL(Swepub:kth)u1et0yya (författare)
KTHMarcus Wallenberg Laboratoriet MWL (creator_code:org_t)

Ingår i:International Journal of Solids and Structures: Elsevier BV219, s. 106-1190020-76831879-2146

Om ämnet

TEKNIK OCH TEKNOLOGIER: TEKNIK OCH TEKNO ...; och Maskinteknik; och Teknisk mekanik

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.